000 00356nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aIndian Standards Institution
245 _aSpecification for sodium thiosulphate
260 _aNew Delhi
_c1950
300 _a0.916666667
440 _aIS-246; Indian Standards Inst
901 _a40905
942 _cB
_2udc
999 _c7710
_d7710